#ifndef _REGEXP_H_
#define _REGEXP_H_

/*
 * Definitions etc. for regexp(3) routines.
 *
 * Caveat:  this is V8 regexp(3) [actually, a reimplementation thereof],
 * not the System V one.
 */

#define EFUN_REGEXP 1
#define ED_REGEXP   2

#define NSUBEXP  10
typedef struct regexp
{
	char *startp[NSUBEXP];
	char *endp[NSUBEXP];
	char regstart; /* Internal use only. */
	char reganch; /* Internal use only. */
	char *regmust; /* Internal use only. */
	int regmlen; /* Internal use only. */
	char program[1]; /* Unwarranted chumminess with compiler. */
} regexp;

extern int regnarrate;
extern int regexp_user;
extern char *regexp_error;

void regdump(regexp *);
regexp *regcomp(unsigned char *, int);
int regexec(regexp *, char *);
char *regsub(regexp *, char *, char *, int);

#endif
